IP Library › Granted Patent US 10,447,130
Granted Patent B2
US 10,447,130 · App. 15/647,056 · Granted Oct 15, 2019

Linear vibration motor

Inventors: Lubin Mao (Shenzhen, CN); Fanghua Ling (Shenzhen, CN)
Assignee: AAC Technologies Pte. Ltd.
H02K33/00B06B1/045H02K5/04H02K33/02
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,447,130
App. No.
15/647,056
Granted
Oct 15, 2019
Kind
B2
Abstract

The present disclosure provides a linear vibration motor, including a housing having accommodating space, a vibrating unit and a stator unit accommodated in the housing, and an elastic member suspending the vibrating unit in the housing, the elastic member comprises a first elastic arm and a second elastic arm which are arranged at two ends of the vibrating unit, and a connecting arm connecting the first elastic arm with a second elastic arm as a whole. The linear vibration motor provided by the present disclosure effectively improves support strength of the elastic member in Z axis direction, and the vibrating unit will not offset in Y axis direction during vibrating. The elastic member is integrated as a whole, during assembling, only one elastic member is necessary, which is easy to assemble, and the positioning is accurate, thereby further improving vibration stability of the linear vibration motor.

Claims (20)

1. A linear vibration motor, comprising:

a housing having accommodating space,

a vibrating unit accommodated in the housing,

a stator unit accommodated in the housing, and

an elastic member suspending the vibrating unit in the housing,

wherein the vibrating unit comprises a first side wall and a second side wall which are arranged opposite to and spaced from each other along a vibrating direction, the housing comprises a first inner wall and a second inner wall arranged at two sides of the vibrating unit, wherein, the first inner wall and the first side wall are arranged opposite to and spaced from each other, and the second inner wall and the second side wall are arranged opposite to and spaced from each other,

wherein the elastic member includes a first elastic arm and a second elastic arm which are arranged at two sides of the vibrating unit, the first elastic arm comprises a first fixing portion connected with the first side wall, a second fixing portion connected with the second inner wall, and a first connecting portion connecting the first fixing portion with the second fixing portion, the second elastic arm comprises a third fixing portion connected with the second side wall, a fourth fixing portion connected with the first inner wall, and a second connecting portion connecting the third fixing portion with the fourth connecting portion, the elastic member further comprises a connecting arm connecting the first fixing portion with the third fixing portion, the connecting arm abuts with the vibrating unit.

2. The linear vibration motor as described in claim 1 , wherein the vibrating unit comprises a first surface and a second surface which are arranged opposite to and spaced from each other and connecting the first side wall and the second side wall, the connecting arm abuts with the first surface or the second surface.

3. The linear vibration motor as described in claim 1 , wherein the connecting arm comprises a first connecting arm, a second connecting arm bending and extending from an end of the first connecting arm, and a third connecting arm bending and extending from an end of the second connecting arm, the first connecting arm is connected with the first fixing portion, the third connecting arm is connected with the third fixing portion.

4. The linear vibration motor as described in claim 1 , wherein the elastic member is integrated as a whole.

5. A linear vibration motor, comprising:

a housing having accommodating space,

a vibrating unit accommodated in the housing,

a stator unit accommodated in the housing, and

an elastic member suspending the vibrating unit in the housing,

wherein the vibrating unit comprises a first side wall and a second side wall which are arranged opposite to and spaced from each other along a vibrating direction, the housing comprises a first inner wall and a second inner wall arranged at two sides of the vibrating unit, wherein, the first inner wall and the first side wall are arranged opposite to and spaced from each other, and the second inner wall and the second side wall are arranged opposite to and spaced from each other,

wherein the elastic member includes a first elastic arm and a second elastic arm which are arranged at two sides of the vibrating unit, the first elastic arm comprises a first fixing portion connected with the first side wall, a second fixing portion connected with the second inner wall, and a first connecting portion connecting the first fixing portion with the second fixing portion, the second elastic arm comprises a third fixing portion connected with the second side wall, a fourth fixing portion connected with the first inner wall, and a second connecting portion connecting the third fixing portion with the fourth connecting portion, the elastic member further comprises a connecting arm connecting the second fixing portion with the fourth fixing portion, the connecting arm abuts with the housing.

6. The linear vibration motor as described in claim 5 , wherein the housing comprises a top wall and a bottom wall which are arranged opposite to and spaced from each other and connecting the first inner wall and the second inner wall, the connecting arm abuts with the top wall or the bottom wall.

7. The linear vibration motor as described in claim 5 , wherein the connecting arm comprises a first connecting arm, a second connecting arm bending and extending from an end of the first connecting arm, and a third connecting arm bending and extending from an end of the second connecting arm, the first connecting arm is connected with the second fixing portion, the third connecting arm is connected with the fourth fixing portion.

8. The linear vibration motor as described in claim 5 , wherein the elastic member is integrated as a whole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2017
From: MAO, LUBIN; LING, FANGHUA
To: AAC TECHNOLOGIES PTE. LTD.
Reel/Frame 043122/0398 →
Priority Claims (1)
CN 2017 2 0390862 U · Apr 14, 2017 · national
Continuity (1)
Related Publication 20180297064A1 · Oct 18, 2018
Cited By (2)
US 12,362,643 US 12,407,234